1. In the setup dialog. Click the Audio/Video tab.
2. Click Select... and choose a video of your choice.
3. If you check "Keep Aspect Ratio", the video will play at default
size, else it fill the screen.

Select Camera instead of Video if you want to use your USB camera or webcam as
the background instead of the video.

"Use Original Video" is only used when playing video file.
If a music video file (MPG, AVI, WMV, FLV) is playing. Video and
music will be playing
from that file. When "Use Original Video" is uncheck, the
background video will be used instead.

In this example. If MyVideo.mpg is played with "Use Original Video"
uncheck. Music will come
from MyVideo.mpg but the video will come from RiverFlow.mpg.